Cable hook



Oct. 9, 1928.

M. COX

CABLE HOOK Filed Jan. 21, 1925 9 Z Wh Il INVENTOR. Mac/nee Cox,

ATTORNEY.

Patented Oct. 9, 1928.

A. UNITED STATES 1,686,734 PATE MACKNEELE cox,v or s'ioLL1Nes,- vviazsr VIRGINIA, Ass'IGN'on or oni-HALF 'ro I1. M. MCKEE, or PEACH CREEK, WEST VIRGINIA. i

CABLE Hook.

.appli-cation med January This invention relates to a cable hook designed primarily for' use in connection with the motor of mine vcarsor mining vmachines with which it is customary'to employ areel, but it is understood that a cable hook, in accordance with this invention can be employed for any purposes wherein it is found applic-able, and the invention hasfor its object to provide, in a manner as hereinafter set forth, a cab-le hookwhich is effectively insulated for Vprotecting the operator, which overcomes the application of sudden jerks to the reel when starting the car or machine thereby preventing injury to the reel, prevents sudden tension on the cable which otherwise would inflict injury tofor perhaps breakage thereof, and for preventing blow outs as thehook is of the yieldable type. Y f

` Further objects of the invention are to pro vide, in a manner as hereinafter set forth, a cable hook-which is siinple'in its construction, strong, durable, compact, thoroughly eflicient and convenient in its use, and comparatively inexpensive 'to manufacture.

Vith the foregoing and other objects in view, the invention consists of the novel-.construction, combination and arrangement of parts as hereinafter set'forth and illustrated Ain the accompanying drawings, wherein is shownan embodiment of theinvention, but it is to be understood that changes inthe details ofconstruction can be had which fall within the scope of the claims hereunto ap'- pended. v

Y In the drawings wherein like reference characters` denote corresponding parts .throughout the several views M Y Figure 1 is an elevation'of a cable hook in accordance with this invention. f

Figure 2 is a longitudinal sectional view thereof.

\ Figure 3 is a section on line-, Figure 2. y l n Figure lis' a fragmentary view, in longitudinal section, taken at right angles to Fig,-

ure 2. A f

Referring to the-drawings in detail l generally denotes a substantially'elongated outer casing of insulation material throughout,l yhaving a closed bottoni and an open top., The

casing 1 is formed with an elongated tubular Vportion2 for the major-portion of its length and a'hollow flattened lower terminal portion 3 ofa width greater than the diameter ofthe 21, 1925. `Sit-'trial N04 3,882-

portion 2. The lower terminal portion 3 of the casing 1 is formed with a pair of oppositelyy extending converging portions Atwhich provide the inner face ofthe casing between thel portions 2,` 3, with a pair of oppositely extending bevelled shoulders 5, which overhang with respect to the portion2and provides a retaining means for an inner casingforined of conducting material and to be pres ently referred to. The portion 3 visormed with a pair of aligning openings i6V with the walls thereof oppositely flared Withrespect to each other,'as'jat 7, 7. i

The inner casing, Whichisreferredto generally by the reference character 8, comprises a tubular portion 9, a flat lower terminal .poreV tion 1() and animer-mediate converging portion 11. The tubular portion9 is of greater length than the tubular portion 2 Vand projects above the top of the latter. y The portion 10 is of greater width than the dia-meter of the portion9, and snugly eng-ages the inner face of the portion 3. The portion 11 Vsnugly engages the shoulders 5, and as these latter continuation of the inner fac-e of the portion 9,.a nd the latter in connection with the concavity 13 provides a'chamber 14 in which operates the inner portion off the yshank of a hook to be presently referred to. bottoni of the chamber 14 is provided bythe portion ll andthe top of sai-d chamber, opens at the upper end of the portion V9. That part'of the portion 9 which projects above the casing, is indicated at 15 .and isprovided with peripheral threads 16 withwhichengages an interiorly threaded `combined closure ,and ret-ain-A ing cap 17, formed ofinsiilationk material, and is provided at its .lower endwith a lateral an'- nular flange 18 its periphery isl provided withrlengthwise extending diametrically opn posed K grippingl ribs 19only oneof which is shown, and'its top-is provided with an .axial opening 20. The cap 17,- when f-mounted in position `rcloses ,the upper` endwofy the por- '.tion 9, vseats onfrthevt-op -edge of thecasing,

acts as a guide for the hook element andV 'end with a hook 22, at its inner end with a. disk 23 and intermediate its ends with a slidable collar 2li. Mounted on the shank and supported bythe disk 23 is a collar 25 of conducting material having a snug, but sliding 1 .lit with the innersurface of the tube 9.

liatportion ofthe shank 2l, within the chamber 14,'carries a pair of controlling springs 26, v26", thc'lattcr 'is interposed between the collar 24 and the top of' the cap 17,

f andthe'foiimer between the collars 25 and' 24.

The springs 26, 26', collars 24, 25 and cap 17 provide a resilient or yielding coupling oi cushion, between the hook element and the cable 271 which `is attached to the flattened portions of the easings l and 8, when the hook eleinen'tis connected to the conductor 28, and it is this resilient or yieldin'gcoupling or cushion which overcomes sudden ai's on the reelyemployed in connection with the mine ear or miningfmachine.

' The'cable 27 is extended vthiough the aligning openings 6 andV l2 and secured together, as at 29,-to provide a loop connection 30 with the casings l and 8. j

The hook 22 is so-,formed as yto enable it to be quickly connected to and removed from the conductor 28, when desired and for such purpose th'evback ofthe hook, as well as the bill thereof, is disposed at an inclination, as indicated at'Sl, 32, respectively. 1 f lThe casing l and cap 17, being formed of insulation material, act to effectively protect the opera-tor, when gripping` the Casing l to connect to the cable 28.V The length of the casing vl is to be materially greater than the p and although the preferred embodiment of the invention is as described and shown, yet it is to be understood that changes in the details of construct-ion can be had which fall within the scope of the invention as claimed. vWhat I 'claim is Y l. A' hook forthe purpose set forth comprisingan outer casing (if-insulation, an inner casing of conducting material extended from the upper end ofthe outer casing, vsaid casings having inherent snugly engaging means at their lowerportions to vprevent the lengthwise separation thereof, a hook element extending into said inner casing and electrically v contacting therewith and spaced from saidinherent means, cushioning means surrounding and. supported by said element, non-conducting means engaging with the extended part of said inner casing, abutting against the outn er casing and surrounding said element for confining said cushioning means, under a .state of compression, within said inner casing, and the said inherent means of said cas- Yings having registering openings `for'coucasing, said inner casing having its vlower end.

seated upon theinneil face of the lower end ofthe outer casing, said casings-having the lower ends thereof provided with registering openings for coupling a cable therewith, said casings having` theirlower portions com-` pressed and extendedV to provide inherent snugly engagingmeans to prevent the lengthwise separation of one'casing relative to the other, a hook eleniient extending into said 'in ner casing and carrying means for electrically connecting it with said inner casing, the inner end of said hook element being spaced from the lower end ofv said inner casing, said hook element extended from ti'ie upper end of the inner casing, a pair of spaced cushioning ele ments surrounding and ,supported by vsaid hook element, non-Conducting means engaging with the extended part of said inner casing, abuttingagainst vthe upper end ofthe outer casing and surrounding said hook 'ele-` ment for confining said cushioning Velements under a state yof compression within said inner easing. l

3, A hook for the purpose set forth comprising an outer kcasing of insulation closed at its lowerend and open at its upper end.- an inner easing of conducting materialclosed at its lower end and open at its upper end and projecting from the upper end of the outer casing, said casings at their lower endsl being laterally extended to'provide inherent snugly Sti llllr lli) engaging meansto prevent the lengthwise separation of one casing relative to the other, a

hook element extendinginto said inner casing and provided with a disc at its lower end, a contact member supported von said disc and contacting with said inner casing and further spaced from the lower end of the latter, a slidable collar on said hook element, a nonconducting means engaging with the extended part of the inner casing, .abutting the upper `end of the outercasing and provided with an opening for the passage of said hook lelemei'it, l

a controlling spring surrounding lsaid Yhook element and interposed between said collar andsaid Contact member, and 'a controlling spring surrounding saidfhook element and hereto. y g 1 f c c 'MACKNEELE COX. y 

